The Dahlia is a one-piece model using the Fujimoto Hydrangea base. The Dahlia is one of my favorite origami models because it can be used as a flower, brooch, ornament, earring, greeting card artwork, or whatever strikes your fancy.
Unknown. I learned the Dahlia at an Origami USA convention about 12 years ago. This model was taught in an Origami USA Special Folding Fun Sessions Class on Oct. 17, 2010. Diagrams are online at https://www.heathereddyart.com/2013/01/origami-dahlias.html.
6-inch Tant paper, any color. 2 sheets for each student.